Patent · US Active

Method for designing a lens shape and spectacle lens

US10976573B2 · kind B2 · utility

0Cited by

22References

4Claims

0Family size

Assignee

Carl Zeiss Vision International GmbH · DE

Inventors

Ray Steven Spratt · Petaluma, US
Philipp Ellinger · McLaren Vale, AU
Helmut Wietschorke · Laberweinting, DE
Angela Nolan · Brighton, AU
Saulius Raymond Varnas · Brighton, AU

Key dates

Filing date	May 3, 2019
Grant date	Apr 13, 2021
Priority date	—
Expiry date	May 3, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/04
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A computer-implemented method for providing a lens shape for an ophthalmic lens is disclosed. Further, there is provided a method for angular smoothing of a surface determined by carrier lines radially outwards of a prescription zone bordered by a first boundary line. In addition, there is provided an ophthalmic lens, in particular, a spectacle lens. Moreover, a method for minimizing the difference in thickness between two ophthalmic lenses for the same spectacles is provided. A computer program product and a machine-readable storage medium are provided as well.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.